- EBU QC Id
- 0035W
- Name
- Video Codec Profile & Level
- Status
- published
- Category
- absolute
- Lead editor
- Jerome MARTINEZ
- Aliases
- profile level profile and level avc profile avc level
- Tags
- video MXF
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- Description
- Specifies the video profile and level of the wrapped video codec which is used to define the complexity of the codec.
- Definition
- Used in Checks, the system shall read out the profile and level indicated in the wrapper metadata and check if it matches the expected one specified in the input. Optionally, the system may report the profile and level.
Used in Reports, the system shall read out the profile and level indicated in the wrapper metadata and report it. - References
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Remark: MPEG in MXF
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Remark: AVC in MXF
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Remark: Table 8-5 – Syntactic constraints of profiles, Table 8-8 – Parameter constraints for levels Table
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Remark: Annex A (AVC profiles), Table A-1 (Level limits)
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- Examples
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Input: "Video Profile Expected" = High 4:2:2 Intra profile
Input: "Video Level Expected" = 4.1
Output: "Check Result" = false
Output: "Video Profile Level" = High 4:4:4 Intra profile
Output: "Video Level" = 4.1Remark: Used as a Check.
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Input: None
Output: "Video Profile Level" = CAVLC 4:4:4 Intra profile
Output: "Video Level" = 5Remark: Used as a Report.
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| Name | Default value | Description | Data model name | Unit | Locator |
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- Remarks
-
This Test is a readout Test.
Related SMPTE Universal Labels:
060e2b34.01010105.04010602.010a0000 [profile and level, ST 381-2]
060e2b34.0101010e.04010606.010a0000 [AVC profile, ST 381-3]
060e2b34.0101010e.04010606.010d0000 [AVC level, ST 381-3]
This Test depends on the wrapped video codec:
- for MPEG-2 in MXF: "Profile And Level" is signalled in one metadata element, e.g. "130" (= 422P@HL).
- for AVC in MXF there are two metadata elements: "AVC Profile" signals e.g. 122 ( = High 4:2:2 Intra) "AVC Levels" signals e.g. 41 ( = Level 4.1). If only one metadata element can be detected, the Check Result shall be false.
For MPEG-2 in MXF the value shall be identical with the "profile_and_level_indication" in the MPEG-2 sequence header extension.
For AVC in MXF the value shall be identical with "profile_idc" and "level_idc" in the sequence parameter set.
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